发明名称 |
Investment casting core methods |
摘要 |
A sacrificial core is used for forming an interior space of a part and includes a ceramic core element and a first core element including a refractory metal element. The ceramic core element may be molded over the first core element or molded with assembly features permitting assembly with the first core element.
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申请公布号 |
US7270170(B2) |
申请公布日期 |
2007.09.18 |
申请号 |
US20040926476 |
申请日期 |
2004.08.26 |
申请人 |
UNITED TECHNOLOGIES CORPORATION |
发明人 |
BEALS JAMES T.;DRAPER SAMUEL D.;LOPES JOSE A.;MURRAY STEPHEN D.;SPANGLER BRANDON W.;TURKINGTON MICHAEL K.;DUBE BRYAN P.;SANTELER KEITH A.;SNYDER JACOB A. |
分类号 |
B22D29/00;F01D25/00;B22C7/02;B22C9/04;B22C9/10;B22C9/22;B22C9/24;F02C7/00 |
主分类号 |
B22D29/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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